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Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities.

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Azitra, Inc. stock logo
AZTR
Azitra
$0.29
+0.6%
$0.30
$0.23
$12.00
$3.58M-1.332.81 million shs140,878 shs
International Stem Cell Co. stock logo
ISCO
International Stem Cell
$0.11
$0.11
$0.05
$0.20
$880K-0.024,522 shs12 shs
Organovo Holdings, Inc. stock logo
ONVO
Organovo
$3.94
$1.56
$21.96
$3.47M1.13617,505 shs243,634 shs
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
$4.76
-11.4%
$3.85
$2.35
$23.80
$2.80M0.28544,783 shs667,307 shs
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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Azitra, Inc. stock logo
AZTR
Azitra
+0.60%+6.22%-2.75%-22.06%-94.75%
International Stem Cell Co. stock logo
ISCO
International Stem Cell
0.00%0.00%-0.90%-5.42%+0.92%
Organovo Holdings, Inc. stock logo
ONVO
Organovo
0.00%0.00%0.00%-53.93%-83.65%
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
-11.36%+57.10%+49.58%+28.06%-81.10%
CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
Azitra, Inc. stock logo
AZTR
Azitra
0.7382 of 5 stars
0.02.00.00.03.30.01.3
International Stem Cell Co. stock logo
ISCO
International Stem Cell
N/AN/AN/AN/AN/AN/AN/AN/A
Organovo Holdings, Inc. stock logo
ONVO
Organovo
N/AN/AN/AN/AN/AN/AN/AN/A
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
1.1565 of 5 stars
0.05.00.00.02.91.70.0
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Azitra, Inc. stock logo
AZTR
Azitra
0.00
N/AN/AN/A
International Stem Cell Co. stock logo
ISCO
International Stem Cell
0.00
N/AN/AN/A
Organovo Holdings, Inc. stock logo
ONVO
Organovo
0.00
N/AN/AN/A
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
0.00
N/AN/AN/A
CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Azitra, Inc. stock logo
AZTR
Azitra
$690K5.19N/AN/A$7.23 per share0.04
International Stem Cell Co. stock logo
ISCO
International Stem Cell
$7.79M0.11N/AN/AN/A
Organovo Holdings, Inc. stock logo
ONVO
Organovo
$122K0.00N/AN/A$0.02 per share0.00
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
N/AN/AN/AN/A$0.83 per shareN/A
CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Azitra, Inc. stock logo
AZTR
Azitra
-$11.28MN/A0.00N/AN/AN/A-212.16%-145.36%8/11/2025 (Estimated)
International Stem Cell Co. stock logo
ISCO
International Stem Cell
-$130K-$0.04N/AN/A-6.80%N/A-10.77%8/11/2025 (Estimated)
Organovo Holdings, Inc. stock logo
ONVO
Organovo
-$14.67M-$10.20N/AN/AN/A-10,151.64%-346.26%-187.53%5/30/2025 (Estimated)
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
-$5M-$13.11N/AN/AN/A-308.97%-228.73%8/12/2025 (Estimated)

Latest ISCO, PTIX, AZTR, and ONVO Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
5/14/2025Q1 2025
International Stem Cell Co. stock logo
ISCO
International Stem Cell
N/A-$0.03N/A-$0.03N/A$2.13 million
5/13/2025Q1 2025
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
N/A-$2.75N/A-$2.75N/AN/A
3/31/2025Q4 2024
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
N/A-$3.36N/A-$0.24N/AN/A
CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
Azitra, Inc. stock logo
AZTR
Azitra
N/AN/AN/AN/AN/A
International Stem Cell Co. stock logo
ISCO
International Stem Cell
N/AN/AN/AN/AN/A
Organovo Holdings, Inc. stock logo
ONVO
Organovo
N/AN/AN/AN/AN/A
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
N/AN/AN/AN/AN/A
CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
Azitra, Inc. stock logo
AZTR
Azitra
N/A
5.58
5.58
International Stem Cell Co. stock logo
ISCO
International Stem Cell
N/A
0.74
0.45
Organovo Holdings, Inc. stock logo
ONVO
Organovo
N/A
0.72
1.72
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
N/A
1.80
1.80

Institutional Ownership

CompanyInstitutional Ownership
Azitra, Inc. stock logo
AZTR
Azitra
11.16%
International Stem Cell Co. stock logo
ISCO
International Stem Cell
N/A
Organovo Holdings, Inc. stock logo
ONVO
Organovo
8.23%
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
7.97%

Insider Ownership

CompanyInsider Ownership
Azitra, Inc. stock logo
AZTR
Azitra
0.56%
International Stem Cell Co. stock logo
ISCO
International Stem Cell
81.48%
Organovo Holdings, Inc. stock logo
ONVO
Organovo
3.72%
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
35.00%
CompanyEmployeesShares OutstandingFree FloatOptionable
Azitra, Inc. stock logo
AZTR
Azitra
1012.48 million12.41 millionNot Optionable
International Stem Cell Co. stock logo
ISCO
International Stem Cell
308.00 million1.48 millionNot Optionable
Organovo Holdings, Inc. stock logo
ONVO
Organovo
201.70 million14.79 millionOptionable
Protagenic Therapeutics, Inc. stock logo
PTIX
Protagenic Therapeutics
2589,0004.71 millionNot Optionable

Recent News About These Companies

Protagenic Therapeutics swaps warrants for shares
Protagenic Therapeutics and Phytanix merge in all stock deal
Small Cap Stocks To Follow Now - May 19th
Protagenic Therapeutics Inc.
Protagenic Therapeutics adjusts stock option prices

New MarketBeat Followers Over Time

Media Sentiment Over Time

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Azitra stock logo

Azitra NYSEAMERICAN:AZTR

$0.29 +0.00 (+0.60%)
Closing price 05/23/2025 04:10 PM Eastern
Extended Trading
$0.28 -0.01 (-2.06%)
As of 05/23/2025 07:59 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Azitra, Inc., an early-stage biopharmaceutical company, develops therapies for precision dermatology using engineered proteins and live biotherapeutic products to treat skin diseases. It develops ATR-12, a genetically modified strain of S. epidermidis, which is in Phase Ib clinical trial for treating Netherton syndrome, a skin disease. The company also develops ATR-04, a genetically modified strain of S. epidermidis for treating the papulopustular rash experienced by cancer patients undergoing epidermal growth factor receptor inhibitor; and ATR-01, an engineered recombinant human filaggrin protein for treating ichthyosis vulgaris, a skin disease. It has a collaboration with Bayer. The company was incorporated in 2014 and is based in Branford, Connecticut.

International Stem Cell stock logo

International Stem Cell OTCMKTS:ISCO

$0.11 0.00 (0.00%)
As of 05/22/2025

International Stem Cell Corporation, a clinical stage biotechnology company, focuses on the development of therapeutic and biomedical products in the United States, Asia, Europe, and internationally. It develops ISC- hpNSC, a neural stem cell program that has completed the Phase I clinical trial for the treatment of Parkinson's disease, as well as for treating stroke and traumatic brain injury. The company also offers anti-aging skin care products, including ProPlus Advanced Defense Complex, ProPlus Advanced Recovery Complex, ProPlus Eye Firming Complex, ProPlus Neck Firming Complex, ProPlus Advanced Aqueous Treatment, ProPlus Collagen Booster, ProPlus Elastin Booster, and ProPlus Brightening Toner. In addition, it provides human cell culture products comprising human skin cells and reagents for the study of skin disease, toxicology, or wound healing; human cells from the heart and blood vessels, and reagents to study cardiovascular disease and cancer; human bronchial and tracheal cell lines for the study of toxicity, cystic fibrosis, asthma, and pathogenesis; and human mammary epithelial cell lines for the study of breast cancer, three dimensional culture, and carcinogen screening. Its human cell culture products also comprise adult stem cells and reagents for regenerative medicine; human prostate cells and specialized medium to study prostate disease; human renal and bladder cells and media to study renal and bladder diseases; human corneal cells and media for the study of corneal disease; human female reproductive system cells for the study of cellular physiology; human skeletal muscle cells for the study of biology, diabetes, insulin receptor studies, muscle metabolism, muscle tissue repair, and myotube development; and other cell culture reagents and supplements for the growth, staining, and freezing of human cells. International Stem Cell Corporation was founded in 2001 and is headquartered in San Diego, California.

Organovo stock logo

Organovo NASDAQ:ONVO

Organovo Holdings, Inc., a biotechnology company, focuses on developing 3D tissues that recapitulate key aspects of human disease. Its 3D human tissue platform includes its proprietary NovoGen Bioprinters, which are automated devices that enable the fabrication of 3D living tissues comprised mammalian cells; and related technologies for preparing bio-inks and bioprinting multicellular tissues with complex architecture. The company offers ExVive 3D bioprinted human liver tissue with distinct hepatocellular and non-parenchymal cell compartments. The company was incorporated in 2007 and is headquartered in San Diego, California.

Protagenic Therapeutics stock logo

Protagenic Therapeutics NASDAQ:PTIX

$4.76 -0.61 (-11.36%)
Closing price 05/23/2025 04:00 PM Eastern
Extended Trading
$4.76 0.00 (-0.11%)
As of 05/23/2025 07:58 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Protagenic Therapeutics, Inc., a biopharmaceutical company, engages in the discovery and development of therapeutics to treat stress-related neuropsychiatric and mood disorders. Its lead compound comprises PT00114, a synthetic form of teneurin carboxy-terminal associated peptide, an endogenous brain signaling peptide that can dampen overactive stress responses. Protagenic Therapeutics, Inc. is headquartered in New York, New York.